Printers  rollers



L K BINGHAM APPARATUS FOR MAKING PRINTERS ROLLERS.

No. 413,893. Patented Oct. 29, 1889.

wimeoow UNITED, STATES PATENT OFFICE.

LEANDER K. BINGHAM, OF NEW YORK, N. Y.

APPARATUS FOR MAKING PRINTERS ROLLERS.

SPECIFICATION forming part of Letters Patent No. 413,893, dated October29, 1889.

Application filed March 1,

useful Improvements in Apparatus for Making Printers Rollers; and I dodeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,which form a part of this specification.

Figure 1 is a top view, partly broken away,

to show the bottom of an apparatus in which the present invention isdisplayed. Fig. 2 is adetail showinga top View of the invention.

Fig. 3 is a section on line 00 00-, Fig. 2. is a modification. thespider.

This invention relates to improvements in apparatus for making printersrollers, more especially to that kind where a cylinder holds a number ofmold-tubes and the bottom turns under the cylinder or the cylinder abovethe bottom. In this kind of apparatus the bottom is usually providedwith an open gutter, as shown at A in the drawings. This gutter isprovided with a nozzle a, through which rollercomposition is admitted.The mold-tubes B are arranged in radial sets, as shown. By rotating thecylinder or the bottom the gutter A is brought under thebottoms of eachset of mold-tubes, and they are filled by the com- Fig. 4 Fig. 5 is aperspective of W position entering the nozzle a into the gutter A and upinto the mold-tubes.

The rollerstocks are inserted in the mold-tubes, their ends being placedin centering-spiders. Now it is found that as the gutter comes under theends of these stocks either part of the spiders 1889. Serial No.301,668. (No modeh) or the projecting ends of the roller-stocks dropdown into the gutter, and hence prevent or impede the proper rotation ofthe device.

It is the object of the present invention to cure this defect. bridgesacross the gutter in the paths of the mold-tubes. e

In the annexed drawings, the letter A indicates the gutter, and B the mold-tubes. .Across the gutter are placed in the paths of the moldtubesbridges C. These may be separate pieces riveted to the bottom, as shownin Fig. 2, or they may be cast with the bottom, as shown in Fig. 4. Theformeris perhaps preferable, as they can be regulated to suit thespacing of the mold-tubes.

The form of spider shown in Fig. 5 is perhaps the preferable form to usewith this device. In use the lower ends of the rollerstocks rest inthese spiders, as usual, the spiders being at the bottoms of themold-tubes.

This is done by placing Now, when the bottom is turned under the as. I

In testimony whereof I affix my signature in presence of two witnesses.

LEANDER K. BINGHAM.

\Vitnesses:

' J 0s. B. DALEY,

CHARLES BINGHAM'.

